Hello, I am trying to find out about two files that keep showing up in my prefetch folder. I am using Windows 7 (64). The two file names are LongTermHist.db.dx and the other one is LongTermHist.db.bt . I tried looking up these two files online and on this site and nothing shows up. Makes me very suspicious of them when I can't find out any information on something that is on my computer. Any help and information would be greatly appreciated.